450789 has 8 divisors (see below), whose sum is σ = 636480. Its totient is φ = 282816.

The previous prime is 450787. The next prime is 450797. The reversal of 450789 is 987054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 450789 - 2¹ = 450787 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4369 + ... + 4470.

It is an arithmetic number, because the mean of its divisors is an integer number (79560).

2⁴⁵⁰⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

450789 is a deficient number, since it is larger than the sum of its proper divisors (185691).

450789 is a wasteful number, since it uses less digits than its factorization.

450789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8859.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 450789 is about 671.4082215761. The cubic root of 450789 is about 76.6757036186.

The spelling of 450789 in words is "four hundred fifty thousand, seven hundred eighty-nine".